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/*
qureje is a database managment tool.
Copyright (C) 2022 Alessandro Iezzi <aiezzi AT alessandroiezzi PERIOD it>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "database.h"
#include "utils.h"
#ifdef PSQL
#include "postgresql.h"
#endif
static int MAX_SIZE_DBMS_NAME = 15;
static int MAX_SIZE_CONN_FIELD = 129; /* including \0 */
qureje_conn *
qureje_conn_create()
{
qureje_conn *conn = (qureje_conn *) malloc (sizeof (qureje_conn));
conn->type = NONE;
conn->host = strcrt(MAX_SIZE_CONN_FIELD);
conn->user = strcrt(MAX_SIZE_CONN_FIELD);
conn->password = strcrt(MAX_SIZE_CONN_FIELD);
conn->dbname = strcrt(MAX_SIZE_CONN_FIELD);
return conn;
}
static int
opt_get_type(qureje_conn *conn, char *opt, char *optv)
{
if (strcmp("-t", opt) == 0 || strcmp("--type", opt) == 0) {
if (strcmp("psql", optv) == 0) {
conn->type = POSTGRESQL;
} else if (strcmp("mariadb", optv) == 0) {
conn->type = MARIADB;
} else {
conn->type = NONE;
}
return 0;
}
return 1;
}
static int
opt_get_user(qureje_conn *conn, char *opt, char *optv)
{
if (strcmp("-u", opt) == 0 || strcmp("--username", opt) == 0) {
strncpy(conn->user, optv, MAX_SIZE_CONN_FIELD);
return 0;
}
return 1;
}
static void
opt_get_dbname(qureje_conn *conn, char *opt)
{
strncpy(conn->dbname, opt, MAX_SIZE_DBMS_NAME);
}
qureje_conn *
qureje_conn_create_from_arguments(int argc, char **argv)
{
int i, j;
qureje_conn *conn = qureje_conn_create();
/*
Parameters:
-t, --type
-u, --username
-p, --password
-P, --no-password
-h, --hostname
*/
for (i = 1, j = 2; i < argc; i++, j++) {
if (opt_get_type(conn, argv[i], argv[j]) == 0
|| opt_get_user(conn, argv[i], argv[j]) == 0) {
i = j++;
continue;
}
/* this call must be the last one */
opt_get_dbname(conn, argv[i]);
}
return conn;
}
int
qureje_connect(qureje_conn *conn)
{
#ifdef PSQL
if (conn->type == POSTGRESQL) {
printf("Establishing a PostgreSQL connection.\n");
return qureje_psql_connect(conn);
}
#endif
return 0;
}
char *
qureje_get_type(qureje_conn *conn)
{
int max_length = 11;
char *str_type = strcrt(max_length);
switch (conn->type) {
case POSTGRESQL:
#ifdef PSQL
strncpy(str_type, "PostgreSQL", max_length);
#else
printf("This program is not compiled with the support to PostgreSQL!\n");
exit(1);
#endif
break;
case MARIADB:
strncpy(str_type, "MariaDB", max_length);
break;
default:
strncpy(str_type, "None", max_length);
break;
}
return str_type;
}
char *
qureje_get_user(qureje_conn *conn)
{
return conn->user;
}
char *
qureje_get_dbname(qureje_conn *conn)
{
return conn->dbname;
}
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